Pith Number

pith:XGP7FF2Z

pith:2001:XGP7FF2ZFUX6BNEGZ2DKXOBH7B

not attested not anchored not stored refs pending

Modeling the spectral energy distribution of galaxies. II. Disk opacity and star formation in 5 edge-on spirals

A. Misiriotis, C.C. Popescu, N.D. Kylafis, R. Tuffs

arxiv:astro-ph/0104346 v1 · 2001-04-20 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGP7FF2ZFUX6BNEGZ2DKXOBH7B}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-04T16:23:15.875924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b99ff297592d2fe0b486ce86abb827f86056ee83f8433f0322b87929ab498582

Aliases

arxiv: astro-ph/0104346 · arxiv_version: astro-ph/0104346v1 · doi: 10.48550/arxiv.astro-ph/0104346 · pith_short_12: XGP7FF2ZFUX6 · pith_short_16: XGP7FF2ZFUX6BNEG · pith_short_8: XGP7FF2Z

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/XGP7FF2ZFUX6BNEGZ2DKXOBH7B \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: b99ff297592d2fe0b486ce86abb827f86056ee83f8433f0322b87929ab498582

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dca1a2ad09e9d5fb93a4e6063dd500172337d5cb0cb5023e6b2d2aa9cc727c66",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-20T19:06:37Z",
    "title_canon_sha256": "bcbc4ec321b650f06999bdbcafdbb838c6b243c4baf96289dcc54adf1cc50c4a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104346",
    "kind": "arxiv",
    "version": 1
  }
}